Add button to add a new repository from sidebar.

It's currently not obvious where to click to add a new repository,
and if anything, we should make it easier for people to set up
new repositories.

assets/scripts/app/templates/repos/list/tabs.hbs

@@ -10,4 +10,8 @@
   <li id="tab_search" {{bind-attr class="view.classSearch"}}>
     <h5><a {{action "activate" "search" target="view"}}>Search</a></h5>
   </li>
+
+  <li id="tab_new" {{bind-attr class="view.classNew"}}>
+    <h5>{{#link-to "profile.index" title="Add New Repository"}}+{{/link-to}}</h5>
+  </li>
 </ul>

assets/scripts/app/views/repo/list.coffee

@@ -47,3 +47,7 @@
     classSearch: (->
       'active' if @get('tab') == 'search'
     ).property('tab')
+
+    classNew: (->
+      'display-inline' if @get('currentUser')
+    ).property('currentUser')

assets/styles/tabs.sass

@@ -44,8 +44,16 @@
     display: none
   #tab_owned.display
     display: inline-block
+  #tab_new
+    display: none
+    height: 25px
+    width: 26px
 
-
+    h5
+      line-height: 25px
+    
+  #tab_new.display
+    display: inline-block
 
 #main
   .tabs